Joint-fastener



(No Modl.)

C. H. OLSON.

JOINT FASTE'NER. t No. 251,129. Y Patented Dec. 20,1881.

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UNITED STATES PATENT OFFICE.

CHRISTOPHER H. OLSON, OF DEOATUR, ILLINOIS.

JOINT-FASTENER.

SPECIFICATION forming part of Letters Patent No. 251,129, dated Decemberl 20, 1881.

Application tiled February 17, 1881. (No model.)

To all 'whom it may concern:

Be it known that 1, CHRISTOPHER H. OLsoN, a resident of the city of Decatur, county of Macon, and State ofIllinois, have invented certain new and useful Improvements in Joint-Fasteners, of which the following is a specification, and which has never been patented to me nor to others with my knowledge and consent in any foreign country.

The invention relates to a means of fastening the corners of boxes, cottins, &c., which consists, essentially', in combining a suitably bent and perfnrated strip of' sheet metal with the sides or parts ot the box or other article, as will be further explained hereinafter.

The accompanying drawings form a part of this specification and illustrate the invention applied.

Figure lrepresents a perspective view of the device detached. Fig. 2 is a section or end view of the sides of a box united by means of my device. Figs. Sand eure perspective views of modifications.

Similar letters of reference indicate corresponding parts in all the iigures.

The strip of sheet metal is originally formed in a blank, which is of triangular form, with very acute angle at the apex, and is bent twice to form the several parts.

a is the base, b the body, and c the prong.

' The base a maybe at right angles tothe body,

as when the box to be joined is rectangular.v

The sides ofthe box are marked m y. The 4 device is applied to the interior angle of these sides by embedding the point c in one side and the end ais drawn into tlleother side bymeans of the screw. 1

In Figf the deviceis shown with two points, c. In Fig. 4 it is shown as formed ot' a piece of wire bent to form a slot at a, which serves the purpose of the hole shown inthe other forms.

What I claim is- The combination, with the two parts to be united, of a sheet-metal strip having one slotted end resting on one part and a driven end embedded in the other part, and with a taper fastening embedded in the tirst part and bearing against the outer end of the slot, as and for the purpose herein described.

CHRISTOPHER H. OLSON.

Attest:

O. Z. GREENE, J. ALLowAYs. 

